<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>await</title>
</head>
<body>
  <script>
    //创建 promise 对象
    const p = new Promise((resolve,reject) => {
      // resolve("成功的值");
      reject("失败啦啦啦")
    })

    //await 要放在 async 函数中
    async function main(){
      //
      try{
        let result = await p; 
        console.log(result);
      }catch(e){
        console.log(e);
      }
      
    }
    //调用函数
    main();
  </script>
</body>
</html>